Question

What does gel electrophoresis do?

A. Makes one DNA sample into many copies

B. Separates DNA fragments so they can be seen

c. Illustrates which chromosomes are present

D. Cuts strands of DNA at specific sites

Answer 1

I would say B

Step-by-step explanation:

Gel electrophoresis is a laboratory method used to separate mixtures of DNA, RNA, or proteins according to molecular size. In gel electrophoresis, the molecules to be separated are pushed by an electrical field through a gel that contains small pores